Abstract: A device for electron irradiation of rolled materials comprises an electron source arranged in a radiation protection chamber, and a drum for transportation of rolled material in a slotted irradiation zone, defined by the radiation protection chamber wall on one side and by a housing wall on the other side. The drum is made as a cylinder arranged on rims so that a part of said cylinder is located in the irradiation zone between the radiation protection chamber wall and the housing wall.

Abstract: The method consists in that an initial stock mixture is exposed to an ionizing radiation with the power of absorbed radiation dose of at least 1 Mrad/s. The installation for producing a mineral binder is essentially a working chamber provided with a charging device and a discharging device, accommodating a substantially horizontal conveyer adapted to convey the material under process inside the working chamber and an ionizing radiation source. An improvement resides in that the installation is provided with a means for controlling the thickness of the layer of the material handled by the conveyor, the means being located over the conveyer ahead of the ionizing radiation source and having pipings built-in into the working chamber past the ionizing radiation source and communicating with draw-off devices. An essential advantage of both the method and installation is a great reduction, (down to a few minutes or even seconds) of the duration of the binder production process.